Find the Differential of the Function at the Indicated Number $$f ( x ) = 13 \sin x + 4 \cos x ; \quad x = \frac { \pi } { 4 }$$

question 85

Multiple Choice

Find the differential of the function at the indicated number. $$f ( x ) = 13 \sin x + 4 \cos x ; \quad x = \frac { \pi } { 4 }$$

• A) \(\frac { 9 \sqrt { 2 } } { 2 } d x\)
• B) \(- \frac { 17 \sqrt { 2 } } { 2 } d x\)
• C) \(\frac { 17 \sqrt { 2 } } { 2 } d x\)
• D) \(- \frac { 9 \sqrt { 2 } } { 2 } d x\)

---

Definitions:

Negotiate

To negotiate is to discuss something formally to reach an agreement or compromise on issues of mutual interest.

Interpret

To explain the meaning of information, words, or actions, often requiring analysis or understanding of context.

Self-Segregation

The process by which individuals or groups separate themselves from others based on characteristics such as race, ethnicity, or socioeconomic status, often voluntarily.

School Board

A school board is a local group of elected officials responsible for governing a community's public schools, including setting policies, hiring staff, and managing budgets.